diff options
| author | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | 2017-04-27 10:48:21 +0530 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2017-05-11 09:45:14 +1000 |
| commit | 4771df23ed6a2b13927030d5933147d85785f5d5 (patch) | |
| tree | 6065972f67b78f9df8cf5a7f3f4b2c7aec22b311 /target | |
| parent | 7f9af1abdcc69fd1d3d8d2be68464329600616d6 (diff) | |
target/ppc: Generate fence operations
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target')
| -rw-r--r-- | target/ppc/translate.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/target/ppc/translate.c b/target/ppc/translate.c index 50b6d4dcd8..4a1f24a54f 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -2971,6 +2971,7 @@ static void gen_stswx(DisasContext *ctx) /* eieio */ static void gen_eieio(DisasContext *ctx) { + tcg_gen_mb(TCG_MO_LD_ST | TCG_BAR_SC); } #if !defined(CONFIG_USER_ONLY) @@ -3008,6 +3009,7 @@ static void gen_isync(DisasContext *ctx) if (!ctx->pr) { gen_check_tlb_flush(ctx, false); } + tcg_gen_mb(TCG_MO_ALL | TCG_BAR_SC); gen_stop_exception(ctx); } @@ -3028,6 +3030,7 @@ static void gen_##name(DisasContext *ctx) \ tcg_gen_qemu_ld_tl(gpr, t0, ctx->mem_idx, memop); \ tcg_gen_mov_tl(cpu_reserve, t0); \ tcg_gen_mov_tl(cpu_reserve_val, gpr); \ + tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ); \ tcg_temp_free(t0); \ } @@ -3177,6 +3180,10 @@ static void gen_conditional_store(DisasContext *ctx, TCGv EA, tcg_gen_br(l2); gen_set_label(l1); + + /* Address mismatch implies failure. But we still need to provide the + memory barrier semantics of the instruction. */ + tcg_gen_mb(TCG_MO_ALL | TCG_BAR_STRL); tcg_gen_trunc_tl_i32(cpu_crf[0], cpu_so); gen_set_label(l2); @@ -3308,6 +3315,7 @@ static void gen_sync(DisasContext *ctx) if (((l == 2) || !(ctx->insns_flags & PPC_64B)) && !ctx->pr) { gen_check_tlb_flush(ctx, true); } + tcg_gen_mb(TCG_MO_ALL | TCG_BAR_SC); } /* wait */ |